diff --git a/test_requirements.txt b/test_requirements.txt
index f48a452..083aaa4 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,6 +1,6 @@
 flake8==2.4.0
 coverage==4.4
-html5lib==0.9999999
+html5lib==0.999999999
 mock==1.0.1
 lxml==3.4.2
 Jinja2==2.7.3